benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 f230 F230_stmpd_U38_1934_, 1992-10-19,   ,   ,  TURBOROGUE,  133 ,   ,  AOAD/M_T,  133,  NONE, 1.079, 0, 30, 15530
 f230 F230_stmpd_U38_1934_, 1992-10-20,   ,   ,  TURBOROGUE,  132 ,   ,  AOAD/M_T,  132,  NONE, 1.0881, 0, 30, 173930
 f230 F230_stmpd_U38_1934_, 1992-10-21,   ,   ,  TURBOROGUE,  132 ,   ,  AOAD/M_T,  132,  NONE, 1.0881, 0, 30, 0
 f230, 1996-09-27,  T.S ,  USGS ,  ASHTECH,  347 ,  Z-XII3 1G00,  unknown,  *163,  NONE, 1.3417, 0, 30, 15340
 f230, 1998-09-25,  JTB ,  USGS ,  ASHTECH,  188 ,  Z-XII3 CB00,  ASH700936D_M,  CR14333,  NONE, 1.1518, 1.2017, 30, 153630
 f230 F230_stmpd_U38_1934_, 2002-09-12,  TJW ,  USGS MENLO PARK ,  TRIMBLE,  4005A27619 ,  4000SSI NP,  TRM22020.00+GP,  0080053858,  NONE, 1.0261, 0, 30, 15400
 f230 F230_stmpd_U38_1934_, 2002-09-14,  BW ,  USGS MENLO PARK ,  TRIMBLE,  3407A05141 ,  4000SSE NP,  TRM22020.00+GP,  0220051874,  NONE, 1.0231, 0, 30, 1660